Mortuary + Bile Urchin + Panicked Bystander // Cackling Culprit + Gwenom, Remorseless

Mortuary

Bile Urchin

Panicked Bystander // Cackling Culprit

Gwenom, Remorseless

How it works

1. Activate Bile Urchin by sacrificing it.
2. When Bile Urchin dies, Mortuary and Panicked Bystander // Cackling Culprit trigger.
3. Resolve the Mortuary trigger, putting Bile Urchin from your graveyard onto the top of your library.
4. Resolve the Panicked Bystander // Cackling Culprit trigger, causing you to gain 1 life
5. Resolve the Bile Urchin ability.
6. Cast Bile Urchin from the top of your library by paying 1 life.
7. Repeat.

This clever loop turns the graveyard into your personal hand, powered entirely by Gwenom, Remorseless granting you the ability to cast spells straight from the top of your library by paying life instead of mana. When you sacrifice Bile Urchin to drain your opponent, Mortuary immediately catches the spirit and tucks it right back onto the top of your library. Meanwhile, Panicked Bystander // Cackling Culprit sits on the battlefield tracking the carnage, gaining you life each time a creature dies to offset the life you pay to recast your tiny tormentor.